Letters Increase in pertussis

Increase in pertussis may be due to increased recognition and diagnosis

BMJ 2012; 345 doi: https://doi.org/10.1136/bmj.e5463 (Published 21 August 2012) Cite this as: BMJ 2012;345:e5463
  1. Douglas Jenkinson, retired general practitioner1
  1. 1Keyworth Medical Practice, Nottingham NG12 5JU, UK
  1. dougjenkinson{at}btinternet.com

I have meticulously studied all cases of whooping cough in my practice since 1977 and I have published many papers on the subject, mainly in the BMJ.

The increase in reported cases coincides with similar increases in the US and Australia.1 A large proportion of this increase is probably the result of better recognition and diagnosis. My data provide good evidence that it never …

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